2014 Grand Cherokee information - Australia - Page 1074 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Export Grand Cherokee 2011+

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #12877  
Old 01-28-2015, 01:25 AM
Barboots's Avatar
Senior Member
My Jeep: 2014 3.0L WK2
 
Join Date: Aug 2013
Location: Perth, Western Australia
Posts: 2,369
Thanks: 129
Thanked 328 Times in 281 Posts
Rep Power: 10597
Barboots has disabled reputation
Re: 2014 Grand Cherokee information - Australia

It seems to deteriorate with the learning process Steve. How many kays have you put on so far? I find it's worse when driving gently in residential streets, and my last MY14 was worse than the one I have now.

Cheers,
Steve

__________________
2014 Overland CRD
Perth, Western Australia
Reply With Quote
Sponsored Links
Advertisement
 
  #12878  
Old 01-28-2015, 01:37 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Oct 2013
Location: Melbourne West
Posts: 19
Thanks: 2
Thanked 3 Times in 3 Posts
Rep Power: 1173
chester is on a distinguished road
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by Red PeeKay View Post
Was Beachport with MJOC Murray?? How was it. It looks pretty good by all accounts.
No Red,
It was with my boys and a few mates.
Dunes are awesome to drive in and almost all of the beach to Robe is great, just a couple of soft bits, but the 18 inch wheels deflated to 14psi and it was fine.

Murray
Reply With Quote
  #12879  
Old 01-28-2015, 03:05 AM
Member
 
Join Date: Jun 2013
Posts: 624
Thanks: 1
Thanked 23 Times in 19 Posts
Rep Power: 1976
mmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond repute
Re: 2014 Grand Cherokee information - Australia

Have been googling (link below) on gear downshift problem I have (see my previous post). It seems that downshift on acceleration is normal. I understand that downshift = rpm increase=more power=speed. The question is why my rpm shoots up but not speed.

http://ask.cars.com/2008/09/transmission-ki.html
Reply With Quote
  #12880  
Old 01-28-2015, 03:07 AM
Barboots's Avatar
Senior Member
My Jeep: 2014 3.0L WK2
 
Join Date: Aug 2013
Location: Perth, Western Australia
Posts: 2,369
Thanks: 129
Thanked 328 Times in 281 Posts
Rep Power: 10597
Barboots has disabled reputation
Re: 2014 Grand Cherokee information - Australia

Video please.
__________________
2014 Overland CRD
Perth, Western Australia
Reply With Quote
  #12881  
Old 01-28-2015, 03:32 AM
sironic's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Jun 2014
Location: Perth WA
Posts: 207
Thanks: 81
Thanked 44 Times in 32 Posts
Rep Power: 1119
sironic is on a distinguished road
Garage
Re: 2014 Grand Cherokee information - Australia

The trans in the Petrol v6 models is 845RE


Cheers, Simon
Reply With Quote
  #12882  
Old 01-28-2015, 04:53 PM
Benn0's Avatar
Senior Member
 
Join Date: Oct 2013
Location: Brisbane, Australia
Posts: 2,061
Thanks: 100
Thanked 326 Times in 255 Posts
Rep Power: 18656
Benn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond repute
Garage
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by mmcrh View Post
Have been googling (link below) on gear downshift problem I have (see my previous post). It seems that downshift on acceleration is normal. I understand that downshift = rpm increase=more power=speed. The question is why my rpm shoots up but not speed.

What does kickdown mean in an automatic transmission? - Ask.cars.com
Do you have some specifics or a video of the problem. As we've already been through, IF you are in 7th gear doing 4000rpm and stuck at 80kph, then something IS slipping.

You need to confirm what gear, what speed, what revs.

You can also try using the paddles and see if changing gear manually makes any difference to building speed.
__________________
MY14 Grand Cherokee LTD CRD - ORA2 & QL | Mopar 18" Night Fever Rims & Rock Rails | Chief Recovery Hooks & Sump Skid Plate | STMaxx 275/65R18
Reply With Quote
  #12883  
Old 01-28-2015, 04:58 PM
Benn0's Avatar
Senior Member
 
Join Date: Oct 2013
Location: Brisbane, Australia
Posts: 2,061
Thanks: 100
Thanked 326 Times in 255 Posts
Rep Power: 18656
Benn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond repute
Garage
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by Steve1307 View Post
The program for the 8HP70 w/ diesel engine I assume would be quite different to the petrol 5.7 or 6.4.
The Pentastar 3.6 is a different gearbox 8HP45, similar controls?

I hadnt thought of the 1-2 shift as rough at all , but I like the idea of the ECO button remembering my preference.
I've had some roughness/jerkiness when the car is cold. In car parks it can also be noticeable. But not bad enough that it concerns me. It seems to be something that can get worse as the trans 'learns'. Then a reset seems to make it better again temporarily, then it gets worse again as it learns again.
__________________
MY14 Grand Cherokee LTD CRD - ORA2 & QL | Mopar 18" Night Fever Rims & Rock Rails | Chief Recovery Hooks & Sump Skid Plate | STMaxx 275/65R18
Reply With Quote
  #12884  
Old 01-28-2015, 07:54 PM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Nov 2014
Location: Sydney, AU
Posts: 213
Thanks: 4
Thanked 69 Times in 39 Posts
Rep Power: 1031
Steve1307 has a reputation beyond reputeSteve1307 has a reputation beyond reputeSteve1307 has a reputation beyond reputeSteve1307 has a reputation beyond repute
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by Barboots View Post
It seems to deteriorate with the learning process Steve. How many kays have you put on so far? I find it's worse when driving gently in residential streets, and my last MY14 was worse than the one I have now.

Cheers,
Steve
Quote:
Originally Posted by Benn0 View Post
I've had some roughness/jerkiness when the car is cold. In car parks it can also be noticeable. But not bad enough that it concerns me. It seems to be something that can get worse as the trans 'learns'. Then a reset seems to make it better again temporarily, then it gets worse again as it learns again.

I've only clocked up about 4700k with only 35% of the distance in urban driving. Maybe not long enough to incorrectly learn bad habits.

I think the trans is quite clever with the downshifts under load and with engine braking downhill but it can still be fooled.

I've got an unusual downhill stop sign near my son's school. When taking off and just rolling away from the stop sign with a normal light accelerator the gearbox likes to stay in 1st gear. I have to give it more of a prod with the pedal to go to 2nd or I manually change up then hold the right paddle to go back to auto mode.

We'll see if it gets more jerky as the learning logic makes it worse.
I would like that ECO (off) preference though , so we'll wait of the diesel version of that TSB comes out.
__________________
2014 Grand Cherokee Laredo CRD - Granite - towing pack only - dodgy proper reverse camera :)
ScanTool OBDLink
Reply With Quote
  #12885  
Old 01-29-2015, 03:12 AM
Member
 
Join Date: Jun 2013
Posts: 624
Thanks: 1
Thanked 23 Times in 19 Posts
Rep Power: 1976
mmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond repute
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by Benn0 View Post
Do you have some specifics or a video of the problem. As we've already been through, IF you are in 7th gear doing 4000rpm and stuck at 80kph, then something IS slipping.

You need to confirm what gear, what speed, what revs.

You can also try using the paddles and see if changing gear manually makes any difference to building speed.

Just had 12 months service done, had PCM flash (the same one for fixing dpf issue) installed and adaptive relearn done this time by a different tech. It appears that the transmission problem has improved somewhat.

This is the first urban driving on light uphill after the service, guesstimated gradient of the hill is about 5 degree.

Speed remained constant at 80. Rpm before the hill was 1300. As soon as the car started climbing, gear downshifted to 7th, rpm jumped to 1700, and remained so until the passing of hill.

Before the TCM flash, despite rpm went up slightly, gear stayed at 8th.
Reply With Quote
  #12886  
Old 01-29-2015, 05:44 PM
Benn0's Avatar
Senior Member
 
Join Date: Oct 2013
Location: Brisbane, Australia
Posts: 2,061
Thanks: 100
Thanked 326 Times in 255 Posts
Rep Power: 18656
Benn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond reputeBenn0 has a reputation beyond repute
Garage
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by mmcrh View Post
Speed remained constant at 80. Rpm before the hill was 1300. As soon as the car started climbing, gear downshifted to 7th, rpm jumped to 1700, and remained so until the passing of hill.

Before the TCM flash, despite rpm went up slightly, gear stayed at 8th.
1700rpm sounds much better than 4000rpm. Sounds normal to me, the car is downshifting to let you accelerate/increase power for the increased load.
__________________
MY14 Grand Cherokee LTD CRD - ORA2 & QL | Mopar 18" Night Fever Rims & Rock Rails | Chief Recovery Hooks & Sump Skid Plate | STMaxx 275/65R18
Reply With Quote
  #12887  
Old 01-30-2015, 12:08 AM
Member
 
Join Date: Jun 2013
Posts: 624
Thanks: 1
Thanked 23 Times in 19 Posts
Rep Power: 1976
mmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond reputemmcrh has a reputation beyond repute
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by Benn0 View Post
1700rpm sounds much better than 4000rpm. Sounds normal to me, the car is downshifting to let you accelerate/increase power for the increased load.

4000rpm is on Mt Ousley Rd, gradient is around 40 degree!
Reply With Quote
  #12888  
Old 01-30-2015, 12:35 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Nov 2014
Location: Sydney, AU
Posts: 213
Thanks: 4
Thanked 69 Times in 39 Posts
Rep Power: 1031
Steve1307 has a reputation beyond reputeSteve1307 has a reputation beyond reputeSteve1307 has a reputation beyond reputeSteve1307 has a reputation beyond repute
Re: 2014 Grand Cherokee information - Australia

Quote:
Originally Posted by mmcrh View Post
4000rpm is on Mt Ousley Rd, gradient is around 40 degree!
40 degrees you'd be sliding backwards with all the wheels spinning.

Its not that much.

The steepest part is only few hundred metres long and only 1 in 6 (or about 16%) so more like 9 degrees.
Most of it is less than 10% grade which is about a 6 degree angle.

i know it feels steeper than that from the drivers seat, or on a bicycle (that would suck) but its really only max out at 9 degrees.

I've ridden a bike down it, never up.
http://veloviewer.com/segment/2491159/Mt+Ousley+Descent

The steepest street on the planet (officially measured) is in Dunedin and its a 19 degree angle (35% grade).
__________________
2014 Grand Cherokee Laredo CRD - Granite - towing pack only - dodgy proper reverse camera :)
ScanTool OBDLink
Reply With Quote
Reply

Tags
2014 wk2 au, australia, SRT, wk2, wk2 au, wk2 srt

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2014 Grand Cherokee - Ordering Information and Pricing Milous Grand Cherokee - WK2 - 8297 05-13-2015 02:08 PM
TSB and Recall information: 1993-2015 Grand Cherokee & 2006-2010 Commander Milous Technical Service Bulletins and Recalls 8 12-08-2014 09:27 PM
2014 Grand Cherokee - hopefully soon! Route 66 New Members - Welcome! 7 03-24-2013 05:04 PM
2014 Jeep Grand Cherokee and 2014 MB E-class Comparison Dan JGC Grand Cherokee - WK2 - 7 01-15-2013 10:39 AM
***JeepGarage Exclusive***Latest information and updates on the "WK2" Grand Cherokee Milous Grand Cherokee - WK2 - 4 07-20-2010 07:17 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.